Otto haselau



(No Modl.)

O. HASELAU,J1. AUTMATIC BOILBR FEED.

No. 594,793.. Patented NV-l 30,1897. l

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Nrrnn STATES- ATENT Fries.

OTTO HASELAU, JR., OF NEV YORK,-N. Y.

AUTOMATIC Bol-LER-FEED.

SPECIFICATION forming part of Letters Patent No. 594,793, dated November 30, 1897. Application tiled January 28,1897. lSerial No. 621,098. (No model.)

To all whom it may concern:

Be it known that LOTTO HAsELAU,Jr ,a citi zen of Germany, residing at New York, in the county and State of New York, have invented new and useful Improvements in Automatic Boiler-Feeds,of which the following is a speciiication.

By this arrangement the Water in a steamboiler can be automatically kept at a proper level; and the invention relates to simple and reliable means for effecting such feed, which means are not liable to get out of order, as set forth in the following specification and claims, and illustrated in the annexed drawings, in which- Figure 1 is a sectional side elevation of a boiler-feed, partly broken. Fig. 2 is asection along a: 0c, Fig. 1.

The boiler 1 communicates by connections 2 and 3 with a water-chamber 4. The steam pipe or connection 2 admits steam-pressure from the boiler to the water or ioat chamber 4, and the water connection 3 maintains a like water-levelin the boiler and chamber. In the chamber 4 is a float 5, connecting by link 6 with lever 7 8, fnlcrumed at 9, and connecting by link 10 with a valve, the disks or heads 11 and 12 of which valve are connected by stem 13, and which close the openings 14 and 15, leading to the part 16 of the pressure- When the water-level in chamber 4 sinks below a certain point, the float 5, which has correspondingly dropped, will cause the valve 11 12 to open, so that steampressure from water-chamber 4 can enter the pressure-channel 16 17. From the channel part 17 lead lateral openings 18 and 18', which are alternately closed by the valve 19, which rocks or oscillates on the knife-edge 20. From the openings 18 and 18 lead channels 21 and 21' to pressure-chambers 22 and 22', separated by partition 2 3. Each pressurechamber has a sprayer or tube, as 24 and 24', made to lead from a chamber, as 25, from which leads outlet 26. ,A suction or illing tube, as 27, has a valve, as 28, leading or opening into each pressure-chamber. From each pressure-chamber leads an outlet into chamber 25, each of said outlets being closed by a valve, as 29, opening from the pressure-cham- `ber to the outlet-chamber 25.

From each outlet 26 leads a tube 30 31 to the boiler 1.

The pressure from channels 16 17 21, acting on the water contained in the chamber 22, forces said water out past valve 29 into chamber 25, and thence into tube 30, whence it can flow through tube 31 into boiler 1. The valve 28 is meanwhile closed. When the water in chamber 22 has been forced out to such an extent as to uncover the sprayer or mouth 32 of tube 24, a spray of water from chamber 25, entering through tube 24 into chamber 22, condenses the-steam in the latter to cause a partial vacuum. By this vacuum valve 19 is shifted to'close opening 18 and open the channel 18 21', so that pressure can enter the chamber 22 to empty the latter. In

the meantime the vacuum in chamber 22 causes valve 29 to close and valve 28 to open,

so that water from tube 27 can enter or pass by valve 28 to iill chamber 22, or, as it might be vulgarly expressed, filling-water is sucked into chamber 22,throngh suction-tube 27 ,past the valve 28.

While the chamber 21 is being forced empty or discharges its Water the chamber 22 lls or is supplied with water, and when the vacuum in emptied chamber 22 has shifted valve 19 to again open channel 18 the chamber 22 is again emptied. This alternate discharge of Water from chambers 22 22 into the boiler continues until the water-level in the boiler 1 and chamber 4 has risen sufficiently to cause oat 5 to close Valve 11 12, whereupon the alternate entry of dischargepressure into chambers 22 and 22 ceases until the boiler water-,level has again sunk below the designated limit. l v

The pipe 31 connects With pipe 30 at a point above the normal water-level of the boiler, so that water from the junction of pipes 30 and 31 can readily descend or flowinto the boiler. A pressure-valve 32 in pipe 3l opening toward the boiler prevents steam escaping from the boiler into pipe 31. I

When filling the boiler and chamber 4 preliminary to working or to heating the boiler, the chambers 22 and 22 can also be at the same time filled by opening valves 33 in pipes 34, leading from chamber 4 into chambers 22 and Vhen these chambers 22 and 22 are filled, the valves 33 are closed, so that pressure from chamber 4 to reach chamber 22 or 22 must pass through channel 16 17 and through opening 18 or 18.

The valve 19, it is noticed, is freely suspended or supported and is actuated by pressure, as described, so as not torequire any lever or actuating mechanism.

Vhat I claim as new, and desire to secure by Letters Patent, is-

1. A boiler and a Water-chamber having a Water and steam connection With the boiler, combined with a float-actuated valve in the Krater-chamber, a pressure-channel adapted to be closed by the float-actuated valve, pressure-chambers made to communicate with the pressure-channel, and a valve made to alternately close the p ressure-chambers to the pressure-channel, each of said pressure-chambers havin g an inlet-valve, and an outlet valve and pipe made to communicate with the boiler, said outlet-pipe being provided with a spraytube made to extend into the pressure-chamber, saidpress'ure chambers having valved Water or filling pipes made to communicate With the Water-chamber substantially as described.

2. A boiler and a Water-chamber having a Water and steam connection with the boiler, combined With a float-actuated valve in the water-chamber, a pressure-channel adapted to be closed by the iioat-actuated Valve, pressure-ehambers made to communicate with the pressure-channel, and a valve made to alternately close the pressure-chambers to the pressure-channel, each of` said pressure-chambers having an inlet-valve, and an outlet valve and pipe made to communicate with the boiler, said outlet-pipe being provided with a spraytube made to extend into the pressure-chamber and being made to rise above the boiler Water-level and provided with a pressurevalve substantially as described.

In testimony whereof I have hereunto set my hand in the presence 'of two subscribing witnesses.

OTTO HASELAU, JR.

lVitnesses:

IVM. C. IIAUFF, E. F. KASTENHUBER. 

